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    Science Museum of Minnesota
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    In this activity, learners investigate balance and symmetry by designing a symmetrical butterfly, using a paper cutout. Then they use pennies symmetrically placed to balance the butterfly on the...

    1 cent - $1 per student Ages 4 - 6 10 to 30 minutes
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    The Exploratorium
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    In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

    free Ages 14 - 18 10 to 30 minutes
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    American Association for the Advancement of Science
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    This activity models the necessary balance of creating power and cleaning up its associated waste. Learners participate in a game where they attempt to move forward toward a goal. For the power...

    $1 - $5 per group Ages 8 - 11 10 to 30 minutes
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    The Exploratorium
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    In this quick and simple activity, learners explore how the distribution of the mass of an object determines the position of its center of gravity, its angular momentum, and your ability to balance...

    1 cent - $1 per student Ages 8 - 14 5 to 10 minutes
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    Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulder
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    Learners explore the concepts of equilibrium and center of mass by seeing how non-symmetrical objects balance. They balance a paper parrot cut-out on a wire coat hanger and find that their parrot...

    1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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    Science Museum of Minnesota
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    In this activity, learners create a kind of balance device using a wire coat hanger, some string, and paper cups. Learners use the balance to see how many jellybeans equals an apple, or create a...

    1 cent - $1 per group Ages 4 - 11 10 to 30 minutes
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    American Association for the Advancement of Science
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    In this online activity, learners partner up to complete several physical exercises and assess their starting fitness level. Over the course of 6 weeks, learners practice the activities and record...

    1 cent - $1 per student Ages 8 - 11 1 to 12 months
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    The Exploratorium
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    In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top. Learners use salt grains, which are virtually unnoticeable to viewers, to give an egg's...

    1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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    WGBH
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    In this design challenge activity, learners build a device to carry a Ping-Pong ball from the top of a zip line to the bottom in four seconds (or less!). Learners follow the design process to build...

    $1 - $5 per student Ages 8 - 14 30 to 45 minutes
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    COSI
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    In this physics activity (page 6 of the PDF), learners will build a class 1 lever and hypothesize and test the distances two objects need to be placed from the fulcrum in order to balance. They...

    1 cent - $1 per student Ages 14 - 18 10 to 30 minutes

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